I have a Sony Vaio PCG-FRV26 which bleeps on boot.
I think that the keyboard may be defective. Running a keyboard checker showed that the 'F9' key was showing as being depressed all of the time and although the software allowed me to disable it... I am fairly sure that this only takes effect after Windows has been loaded ... which means that the keyboard detection at boot up, before Windows loads, still goes on.
Going onto BIOS there appears to be no way to disable it or find a bootlog of any description. I have tried various programs to create a bootlog without success.
I have checked Events logs etc all without proving the keyboard issue.
Can anyone help?